Analysis

  • max time kernel
    141s
  • max time network
    134s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-05-2024 09:47

General

  • Target

    bc0830b3d105954fd3a9361a230fcd39dc3e1fae9de5ab65314db1917a5ba702.exe

  • Size

    372KB

  • MD5

    e77e0b96b07fde5744943779f76e7295

  • SHA1

    c1c7ced8c4ef15311d1dbe27625fd9f29953bb73

  • SHA256

    bc0830b3d105954fd3a9361a230fcd39dc3e1fae9de5ab65314db1917a5ba702

  • SHA512

    2aa78c3060dc4c4e8e1dd71d2e7aee1754b0a2f568bd635737e5b25709715cffdf77c328f2b1bf97fb0b9787fb00a2410a31511ba0e59148e5878d67dbe92b91

  • SSDEEP

    6144:ipFxc1jv9NVJYCdB7H2CatlcKxtgIxvO6nuotVmUn5f9MyEITzvT7l:ipFxQVTJYcB71YtgIxvO6uorDTL3Tfl

Malware Config

Extracted

Family

stealc

C2

http://185.172.128.150

Attributes
  • url_path

    /c698e1bc8a2f5e6d.php

Signatures

  • Detect ZGRat V1 3 IoCs
  • Stealc

    Stealc is an infostealer written in C++.

  • ZGRat

    ZGRat is remote access trojan written in C#.

  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 2 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 25 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 7 IoCs
  • Suspicious use of SendNotifyMessage 7 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bc0830b3d105954fd3a9361a230fcd39dc3e1fae9de5ab65314db1917a5ba702.exe
    "C:\Users\Admin\AppData\Local\Temp\bc0830b3d105954fd3a9361a230fcd39dc3e1fae9de5ab65314db1917a5ba702.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2636
    • C:\Users\Admin\AppData\Local\Temp\u218.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u218.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:3596
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3596 -s 2288
        3⤵
        • Program crash
        PID:624
    • C:\Users\Admin\AppData\Local\Temp\u218.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u218.1.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:1820
      • C:\Users\Admin\AppData\Local\Temp\iolo\dm\SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
        "C:\Users\Admin\AppData\Local\Temp\iolo\dm\SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe" /eieci=11A12794-499E-4FA0-A281-A9A9AA8B2685 /eipi=5488CB36-BE62-4606-B07B-2EE938868BD1
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4408
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2636 -s 1616
      2⤵
      • Program crash
      PID:3696
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 2636 -ip 2636
    1⤵
      PID:396
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3596 -ip 3596
      1⤵
        PID:4964

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\ProgramData\Are.docx

        Filesize

        11KB

        MD5

        a33e5b189842c5867f46566bdbf7a095

        SHA1

        e1c06359f6a76da90d19e8fd95e79c832edb3196

        SHA256

        5abf8e3d1f78de7b09d7f6fb87f9e80e60caacf13ef3c1289665653dacd7c454

        SHA512

        f2ad3812ec9b915e9618539b0f103f2e9acaad25fbbacd84941c954ce070af231324e83a4621e951c1dbae8d40d50410954e40dd52bbd46e34c54b0d1957407b

      • C:\ProgramData\mozglue.dll

        Filesize

        593KB

        MD5

        c8fd9be83bc728cc04beffafc2907fe9

        SHA1

        95ab9f701e0024cedfbd312bcfe4e726744c4f2e

        SHA256

        ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

        SHA512

        fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

      • C:\ProgramData\nss3.dll

        Filesize

        2.0MB

        MD5

        1cc453cdf74f31e4d913ff9c10acdde2

        SHA1

        6e85eae544d6e965f15fa5c39700fa7202f3aafe

        SHA256

        ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

        SHA512

        dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

      • C:\Users\Admin\AppData\Local\Temp\u218.0.exe

        Filesize

        230KB

        MD5

        3fb9035368d04ac2ac3adab9ce20d61c

        SHA1

        d1b8c0ff81ea938bd8d33fa429f057f3a6fe8795

        SHA256

        566cda535fe8f8c0d3477479b7f3b6621204b3de2724da2a7cf3aedd52a0a9df

        SHA512

        f13b40137f21e93f336910dc6e739936ba3283d5b682f6b54c41a87ee8ddda853e8d5cb15439b785db18b1422d995fb9a126c5f1af0c2c4134e948f1305c51c3

      • C:\Users\Admin\AppData\Local\Temp\u218.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/1820-105-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/1820-106-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/2636-7-0x0000000000400000-0x0000000002599000-memory.dmp

        Filesize

        33.6MB

      • memory/2636-28-0x0000000000400000-0x0000000002599000-memory.dmp

        Filesize

        33.6MB

      • memory/2636-29-0x0000000002840000-0x00000000028AC000-memory.dmp

        Filesize

        432KB

      • memory/2636-30-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/2636-1-0x00000000028F0000-0x00000000029F0000-memory.dmp

        Filesize

        1024KB

      • memory/2636-3-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/2636-2-0x0000000002840000-0x00000000028AC000-memory.dmp

        Filesize

        432KB

      • memory/3596-35-0x0000000000400000-0x0000000002575000-memory.dmp

        Filesize

        33.5MB

      • memory/3596-51-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/3596-90-0x0000000000400000-0x0000000002575000-memory.dmp

        Filesize

        33.5MB

      • memory/3596-168-0x0000000000400000-0x0000000002575000-memory.dmp

        Filesize

        33.5MB

      • memory/4408-134-0x00000239B2C80000-0x00000239B2C94000-memory.dmp

        Filesize

        80KB

      • memory/4408-147-0x00000239B8CD0000-0x00000239B8CD8000-memory.dmp

        Filesize

        32KB

      • memory/4408-132-0x0000023998C30000-0x0000023998C40000-memory.dmp

        Filesize

        64KB

      • memory/4408-135-0x00000239B2CF0000-0x00000239B2D14000-memory.dmp

        Filesize

        144KB

      • memory/4408-137-0x00000239B3CA0000-0x00000239B3D52000-memory.dmp

        Filesize

        712KB

      • memory/4408-136-0x000002399A590000-0x000002399A59A000-memory.dmp

        Filesize

        40KB

      • memory/4408-138-0x00000239B41C0000-0x00000239B41EA000-memory.dmp

        Filesize

        168KB

      • memory/4408-139-0x00000239B4240000-0x00000239B4290000-memory.dmp

        Filesize

        320KB

      • memory/4408-140-0x00000239B4290000-0x00000239B42B2000-memory.dmp

        Filesize

        136KB

      • memory/4408-141-0x000002399A5A0000-0x000002399A5AA000-memory.dmp

        Filesize

        40KB

      • memory/4408-145-0x00000239B42C0000-0x00000239B45C0000-memory.dmp

        Filesize

        3.0MB

      • memory/4408-133-0x00000239B2C90000-0x00000239B2C9C000-memory.dmp

        Filesize

        48KB

      • memory/4408-149-0x00000239B85E0000-0x00000239B85EE000-memory.dmp

        Filesize

        56KB

      • memory/4408-148-0x00000239B8610000-0x00000239B8648000-memory.dmp

        Filesize

        224KB

      • memory/4408-150-0x00000239B8600000-0x00000239B8608000-memory.dmp

        Filesize

        32KB

      • memory/4408-151-0x00000239B9780000-0x00000239B978A000-memory.dmp

        Filesize

        40KB

      • memory/4408-152-0x00000239B97A0000-0x00000239B9802000-memory.dmp

        Filesize

        392KB

      • memory/4408-153-0x00000239B9500000-0x00000239B9522000-memory.dmp

        Filesize

        136KB

      • memory/4408-154-0x00000239B9D30000-0x00000239BA258000-memory.dmp

        Filesize

        5.2MB

      • memory/4408-157-0x00000239B9520000-0x00000239B952C000-memory.dmp

        Filesize

        48KB

      • memory/4408-163-0x00000239B9600000-0x00000239B9676000-memory.dmp

        Filesize

        472KB

      • memory/4408-131-0x00000239B3F70000-0x00000239B407A000-memory.dmp

        Filesize

        1.0MB

      • memory/4408-110-0x0000023994FE0000-0x0000023998814000-memory.dmp

        Filesize

        56.2MB

      • memory/4408-169-0x00000239B45E0000-0x00000239B45FE000-memory.dmp

        Filesize

        120KB